CN118149533A - Refrigerator door opening and closing mechanism - Google Patents

Abstract

The invention provides a refrigerator door opening and closing mechanism which comprises a door body, a driving rod assembly arranged in the door body, a guide block connected to the inner side of the driving rod assembly and a pressing switch arranged on the door body, wherein the driving rod assembly comprises a lifting rod extending vertically and an inclined connecting rod hinged with the lifting rod, the tail end of the lifting rod is provided with a telescopic stop block, and the pressing switch drives the lifting rod to lift by pushing the inclined connecting rod so that the telescopic stop block protrudes out of the door body or retracts into the door body. Compared with the prior art, the lifting device has the advantages that the lifting of the lifting rod is driven by simple pressing operation of the pressing switch to lift the telescopic stop block, so that locking and unlocking of the door body and the box body are realized, the whole process only needs to push the pressing switch, the door opening is simpler and more convenient than the existing mode of pulling the door by hands or pedal opening the door by feet, and the door opening device is particularly suitable for realizing the door opening by pushing any other parts of the body under the scene that the hand-held object cannot be stretched.

Description

Refrigerator door opening and closing mechanism

Technical Field

The invention relates to the field of refrigeration equipment, in particular to a refrigerator door opening and closing mechanism.

Background

The traditional refrigerator door body is generally connected with the refrigerator body through a single-side hinge, sealing strips are arranged on the edges of the periphery of the door body, when the door is opened, the position of a handle or a clamping groove is generally required to be searched, then the finger stretches into the clamping groove or pulls the handle to open the refrigerator door body, and a large pulling force is required to be produced by the finger or the hand, if a user holds an article in the hand, the user can only open the door by one hand, and a certain operation difficulty is increased. In order to solve the problem of holding article and opening the door, there are some two door refrigerator in the market adopt about two pedal structural design, open the door body through stepping on, if: the left pedal can be pressed to open the right door body, and the right pedal can be pressed to open the left door body, so that the hands of a user are liberated, and the problems of interference with the legs of the user when the door body is opened are avoided in the modes of 'opening the left and right and opening the right and left'. However, in practice, it is found that the design of opening the door by feet requires the user to stand at a position closer to the refrigerator, and the force of the feet is not easy to precisely control, so that the door body is easy to collide with the body of the user when the door is opened, the user experience is affected, and certain potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a refrigerator door opening and closing mechanism for solving the problem of inconvenience in opening a door in the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a refrigerator door switch mechanism, includes the door body, installs in the internal actuating lever subassembly of door, connects in the inboard guide block of actuating lever subassembly and installs the push switch on the door body, the actuating lever subassembly include the lifter of vertical extension and with the articulated slant connecting rod of lifter, the end of lifter is equipped with flexible dog, push switch drives the lift of lifter in order to make flexible dog protruding the door body or retract to the door body through promoting the slant connecting rod.

Further, the guide block is fixed in the door body, and a heart-shaped chute is formed in the side surface of the guide block; the oblique connecting rod is connected to the guide block through a connecting piece, one end of the connecting piece is hinged with the oblique connecting rod, and the other end of the connecting piece is provided with a convex shaft part which is clamped in the heart-shaped sliding groove.

Further, the position of the protruding shaft part in the heart-shaped chute slides from high position to low position or from low position to high position along with the operation of pushing the oblique connecting rod by the push switch.

Further, the number of the lifting rods is two and the lifting rods are distributed up and down, the number of the oblique connecting rods is also two and the oblique connecting rods are connected between the two lifting rods, and one ends of the two oblique connecting rods are mutually hinged and form V-shaped distribution.

Further, the two oblique connecting rods are connected to the guide block through a connecting piece, and one end of the connecting piece is connected to the hinging position of the two oblique connecting rods and forms Y-shaped distribution together with the two oblique connecting rods.

Further, one side of the telescopic stop block is provided with a telescopic spring, the telescopic spring is sleeved on the lifting rod, one end of the telescopic spring is abutted to the telescopic stop block, the other end of the telescopic spring is in press connection with a seat sleeve, and the seat sleeve is fixed in the door body and encloses the telescopic spring on the inner side of the door body.

Further, the top surface of the door body is provided with an accommodating groove and an encapsulation block accommodated in the accommodating groove, the encapsulation block is flush with the top surface of the door body or does not exceed the top surface, the encapsulation block is provided with a through hole for accommodating the telescopic stop block, and the telescopic stop block protrudes out of the door body or retracts into the door body through the through hole.

Further, the pressing switch comprises a pressing main body and a pulley arm protruding from the inner side of the pressing main body towards the inclined connecting rod, one end of the pulley arm is fixed on the pressing main body, the other end of the pulley arm is provided with a pulley, and the pulley is used for pressing the inclined connecting rod in the pressing operation of the pressing switch.

Further, the number of the pulley arms is two, and the pulley arms form V-shaped distribution; the push switch further comprises at least one reset spring arranged in the door body, wherein the reset spring is positioned on the inner side of the push main body and pushes the push main body to reset when the push operation is finished.

Further, the top surface of the door body is provided with a strip-shaped groove and a magnetic strip accommodated in the groove; the telescopic stop block protrudes out of the door body and is clamped on the refrigerator body when the door body is in a closed state, the refrigerator body is also provided with a magnetic strip, and the magnetic strip on the refrigerator body and the magnetic strip on the door body are placed in a mode that the magnetic poles are opposite to each other and correspond to each other.

The invention also adopts the following technical scheme: the utility model provides a refrigerator door switch mechanism, includes the door body, installs in the internal actuating lever subassembly of door and installs the push switch on the door body, the actuating lever subassembly includes the lifter of vertical extension and connects in the elasticity of lifter one end and draw the piece, the end of lifter is equipped with flexible dog, push switch pulls through inwards bulldozing elasticity and draw the piece and draw the lifter in order to make flexible dog retract to the door body.

Compared with the prior art, the invention uses simple pressing operation of the pressing switch to drive the lifting rod to lift so as to lift the telescopic stop block, thereby realizing locking and unlocking of the door body and the box body (not shown), the whole process only needs to push the pressing switch, and the door is simpler and more convenient than the existing mode of pulling the door by hand or pedal opening the door, and is particularly suitable for realizing the door opening by pushing any other parts of the body under the scene that the hand-held object cannot be stretched.

Drawings

Fig. 1 is a perspective view of a refrigerator door opening and closing mechanism according to the present invention installed in a door body.

Fig. 2 is an exploded view of a refrigerator door opening and closing mechanism and a door body according to the present invention.

Fig. 3 is a schematic view showing an installation position of a door opening and closing mechanism of a refrigerator according to the present invention.

Fig. 4 is a partial enlarged view of the dashed box A, B in fig. 3.

Fig. 5 is a diagram showing the cooperation of the driving lever assembly and the guide block of the refrigerator door opening and closing mechanism according to the present invention.

Fig. 6 is a perspective view of a retractable stopper and a package block of a refrigerator door opening and closing mechanism according to the present invention.

Fig. 7 is a schematic view of the refrigerator door opening and closing mechanism of the present invention before the driving rod assembly is matched with the guide block.

Fig. 8 is a schematic view of a heart-shaped chute on a side surface of a guide block of a door opening and closing mechanism of a refrigerator according to the present invention.

Fig. 9 is a schematic view of a driving lever assembly in another alternative embodiment of a refrigerator door opening and closing mechanism according to the present invention.

Fig. 10 is a schematic view of a driving lever assembly of a refrigerator door opening and closing mechanism according to still another alternative embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

It will be appreciated that terms such as "upper," "lower," "outer," "inner," and the like, as used herein, refer to spatially relative positions and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

Referring to fig. 1 to 8, the present invention provides a refrigerator door opening and closing mechanism, which comprises a door body 10, a driving rod assembly 20 installed in the door body 10, a guide block 30 connected to the inner side of the driving rod assembly 20, a push switch 40 connected to the outer side of the driving assembly, and a telescopic stopper 50 installed at the end of the driving rod assembly 20.

As shown in fig. 1,2 and 3, the door body 10 is provided with a fixed side 11, a movable side 12, and a top surface 13 and a bottom surface 14 connecting the fixed side 11 and the movable side 12. Wherein the fixed side 11 is provided with a mounting portion 15 for mounting and fixing to a cabinet (not shown) of the refrigerator as a rotation center of the door 10; the movable side 12 is located at the other side of the door body 10 for opening or closing, and the movable side 12 is provided with an end surface 12a, and the end surface 12a is formed in the thickness direction of the door body 10. The top surface 13 of the door body 10 is provided with a strip-shaped groove 13a and magnetic strips (not shown) accommodated in the groove 13a, the groove 13a is distributed on the top surface 13 of the door body 10 and extends from the fixed side 11 to the movable side 12, preferably, the bottom surface 14 of the door body 10 is also provided with the groove 13a and the magnetic strips, it should be noted that the refrigerator cabinet (not shown) is also provided with the magnetic strips, the magnetic strips can be arranged on the door frame of the cabinet (not shown) and correspond to the positions of the magnetic strips of the door body 10, and the magnetic strips of the cabinet (not shown) and the magnetic strips of the door body 10 are arranged in a mode of opposite magnetic poles, that is, the N poles of the two magnetic strips are adjacent, or the S poles of the two magnetic strips are adjacent, and the repulsive force generated between the magnetic strips of the cabinet (not shown) and the magnetic strips of the door body 10 in the door closing state is utilized. In the preferred embodiment of the present invention, the top surface 13 of the door body 10 is further provided with a receiving groove 13b and a packaging block 13c received in the receiving groove 13b, the packaging block 13c is flush with the top surface 13 of the door body 10 or does not exceed the top surface 13, the packaging block 13c is provided with a through hole 13d penetrating up and down for being matched with the telescopic stopper 50, and the receiving groove 13b and the packaging block 13c are disposed adjacent to the end surface 12a of the movable side 12 and between the end surface 12a and the end of the groove 13 a.

As shown in fig. 4 and 5, the driving rod assembly 20 includes a pair of vertically extending lifting rods 21 and a pair of diagonal connecting rods 22 connected between the lifting rods 21, one end of the lifting rod 21 is connected to the telescopic stopper 50, and the other end is hinged to the diagonal connecting rods 22. One ends of the two oblique connecting rods 22 are hinged to each other, the other ends of the two oblique connecting rods 22 are separated from each other and are respectively used for being hinged to the two lifting rods 21, so that the two oblique connecting rods 22 form a V-shaped structure, a connecting piece 23 extending towards the guide block 30 is further connected to the position where the two oblique connecting rods 22 are hinged to each other, the connecting piece 23 comprises a pair of connecting arms 24 which are connected and matched with the guide block 30, as shown in fig. 7, one ends of the connecting arms 24 are hinged to the oblique connecting rods 22, the other ends of the connecting arms extend towards the guide block 30 and are clamped on two sides of the guide block 30, and a convex shaft portion 25 protruding into the guide block 30 is formed at the extending tail end of each connecting arm 24. The two oblique connecting rods 22, the oblique connecting rod 22 and the lifting rod 21, and the oblique connecting rod 22 and the connecting piece 23 are all connected in a hinged manner, so that relative rotation within a certain range can occur to each other, and one end of the connecting arm 24 is connected to the hinged position of the pair of oblique connecting rods 22 and forms a Y-shaped structure together with the two oblique connecting rods 22. The hinge is preferably realized by a pin, i.e. a pin connection is adopted between the two oblique connecting rods 22 and between the oblique connecting rods 22 and the lifting rod 21.

As shown in fig. 7 and 8, the guide block 30 is fixed in the door body 10 and is engaged with the engaging member 23, the position of the guide block 30 corresponds to the hinge position of the two oblique connecting rods 22, the two are connected by a pair of engaging arms 24 of the engaging member 23, and two vertical side surfaces of the guide block 30 are respectively provided with a heart-shaped chute 31 for respectively accommodating the protruding shaft portions 25 of the pair of engaging arms 24, so that the protruding shaft portions 25 can slide in the heart-shaped chute 31. Preferably, a heart-shaped protrusion 32 is disposed on the inner side of the heart-shaped chute 31, the heart-shaped chute 31 surrounds the periphery of the heart-shaped protrusion 32, a protruding tip 31a is disposed on one end of the heart-shaped chute 31 near the oblique connecting rod 22, a back recess 31b opposite to the protruding tip 31a is disposed on one end far away from the oblique connecting rod 22, the heart-shaped chute 31 is further provided with a pair of ramp portions 31c connected between the protruding tip 31a and the back recess 31b, and the protruding tip 31a, the back recess 31b and the pair of ramp portions 31c together form the heart-shaped chute 31.

As shown in fig. 5, the push switch 40 is mounted on the outer surface of the door body 10, and includes a push body 41, a pair of pulley arms 42 protruding from the inner side of the push body 41 toward the diagonal link 22, and a return spring 43 pressed against the inner side of the push body 41, wherein the push body 41 is exposed on the outer surface of the door body 10 for a person to push. The bottoms of the pair of pulley arms 42 are intersected with each other and integrally connected to the pressing body 41, and the tops are separated from each other so that the two pulley arms 42 form a V-shaped structure, and a pulley 421 is mounted on the top of each pulley arm 42 for pressing against the diagonal connecting rod 22, preferably, an included angle between the two pulley arms 42 is 30-50 degrees, and in the preferred embodiment, 40 degrees are adopted. The two pulley arms 42 correspond to the two diagonal links 22, and are used to act on the corresponding diagonal links 22. One end of the return spring 43 abuts against the inner surface of the pressing body 41, so as to return the pressed pressing body 41, and the pressing body 41 returns to the original position under the urging force of the return spring 43 after each pressing, preferably, the number of the return springs 43 is not limited, and may be 1 or more, as long as the return spring force can be provided to the pressing body 41.

As shown in fig. 6, the telescopic stopper 50 is located at the end of the lifting rod 21, and is integrally formed on the lifting rod 21 or is fixedly mounted on the lifting rod 21, and the telescopic stopper 50 is vertically disposed in correspondence to the through hole 13d of the package block 13c and is accommodated in the through hole 13d, when the door 10 and the box (not shown) are in a locking state, the telescopic stopper 50 protrudes through the top surface 13 and the bottom surface 14 of the door 10 to be locked with the box (not shown), and when the door 10 and the box (not shown) are in an unlocking state, the telescopic stopper 50 is retracted into the through hole 13 d. Preferably, a guiding inclined plane 51 is formed at the free end of the telescopic stopper 50, and the guiding inclined plane 51 is disposed facing the inner side of the door body 10 and extends with a height lower in the inner side and higher in the outer side, so as to facilitate the telescopic stopper 50 to retract into the through hole 13d smoothly during the closing process of the door body 10, thereby not blocking the closing process of the door body 10. In the preferred embodiment of the present invention, a telescopic spring 52 is further disposed on one side of the telescopic stopper 50, the telescopic spring 52 is sleeved on the lifting rod 21, one end of the telescopic spring 52 abuts against the telescopic stopper 50, the other end abuts against a seat cover 53, the seat cover 53 is fixed on the door body 10, and the telescopic spring 52 is limited and fixed therein, so that the telescopic spring 52 is limited and fixed, and the action of the telescopic spring 52 can be beneficial to pushing the telescopic stopper 50 to achieve a reset motion, that is, pushing the telescopic stopper 50 out of the through hole 13d again under the thrust of the telescopic spring 52 to protrude the top surface 13 and the bottom surface 14 of the door body 10.

Due to the heart-shaped chute 31, a Push-Push structure is formed, i.e. the opening and closing of the door body 10 can be completed only by a simple pushing operation. Specifically, when the door body 10 is in the closed state, the protruding portion 25 of the engaging arm 24 is clamped in the back recess 31b (i.e. the high position) of the heart-shaped chute 31, the telescopic stopper 50 at the end of the lifting rod 21 protrudes out of the top surface 13 and the bottom surface 14 of the door body 10 and is locked on the box body (not shown), at this time, only the pressing body 41 needs to be pushed inwards to push the pressing body 41, so that the two pulley arms 42 move towards the oblique connecting rod 22 and push the oblique connecting rod 22, the protruding portion 25 of the engaging arm 24 is separated from the back recess 31b and descends into the ramp portion 31c (i.e. the low position) of the heart-shaped chute 31, and in this process, the lifting rod 21 is driven to move vertically, so that the telescopic stopper 50 at the end of the lifting rod 21 compresses the telescopic spring 52 to retract into the door body 10 and separate from the lock catch with the box body (not shown), and at this time, the door body 10 is opened by the mutual repulsive force between the magnetic strips of the door body 10 of the box body (not shown). Conversely, the pressing body 41 is only required to be pushed inwards again, and the protruding portion 25 of the engaging arm 24 can slide from the lower position to the upper position of the heart-shaped chute 31 again under the cooperation of the pulley arm 42 and the oblique connecting rod 22, so that the telescopic stopper 50 protrudes again out of the top surface 13 and the bottom surface 14 of the door body 10 under the thrust of the telescopic spring 52, and locking with a box body (not shown) is realized.

In other alternative embodiments of the present invention, the design scheme of the single oblique connecting rod 22, the single lifting rod 21 and the single pulley arm 42 may be adopted, and the heart-shaped chute 31 on the guide block may be provided with only one (two side surfaces are not required to be provided), and the telescopic stopper 50 at the tail end of the lifting rod 21 only needs to be provided at the top end or the bottom end of the door body (two upper and lower ends are not required to be provided), as shown in fig. 9, the embodiment may still Push the single oblique connecting rod 22 through the single pulley arm 42, and further drive the single lifting rod 21 to lift so as to achieve the purpose of extending and retracting the telescopic stopper 50, and the embodiment may also achieve the purpose of locking and unlocking the door body by adopting the Push-Push operation mode (i.e. the two Push operation mode), in this scheme, the door body is locked with the door body only by one end (top end or bottom end), although the locking effect is not as high as that of the upper and lower ends are simultaneously locked, but the scheme is lower in cost, and may also be suitable for some specific application scenarios and market demands, which are not repeated herein. Of course, it is conceivable that the diagonal connecting rod 22 could be replaced by an elastic pulling member 22', such as: the spring, elastic cord, etc. can be used for driving the rod assembly 20' at this time, and the mode of driving can be referred to as fig. 10, which shows that the elastic pulling member 22' is used for changing the locking state of the door body 10' and the box body 200' to the unlocking state, the design utilizes the elastic deformation capability of the elastic pulling member 22', the elastic pulling member 22' is pushed by the push switch 40', the lifting rod 21' is pulled by the elastic pulling member 22', and the lifting rod 21' moves vertically (i.e. Y direction), so as to drive the telescopic stop block 50' to retract into the door body 10', and further separate from the locking with the box body 200', and then the door is easily opened by the repulsive force of the magnetic stripe or other force application modes.

In summary, by optimizing the opening and closing mechanism of the refrigerator door, the driving rod assembly 20 can drive the telescopic stopper 50 to lift under the condition of two presses by utilizing the pressing operation of the pressing switch 40 and the guiding action of the guiding block 30, so as to lock and unlock the door body 10 and the refrigerator body (not shown), and the whole process only needs to push the pressing switch 40, so that the door opening is simpler and more convenient than the existing mode of pulling the door by hands or opening the door by foot, and is particularly suitable for realizing the door opening by pushing any other parts of the body under the scene that the hand-held article cannot be stretched.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims (11)

1. The utility model provides a refrigerator door switch mechanism, includes the door body, installs in the internal actuating lever subassembly of door, connects in the inboard guide block of actuating lever subassembly and installs the push switch on the door body, its characterized in that: the driving rod assembly comprises a lifting rod extending vertically and an oblique connecting rod hinged with the lifting rod, the tail end of the lifting rod is provided with a telescopic stop block, and the push switch drives the lifting rod to lift by pushing the oblique connecting rod so that the telescopic stop block protrudes out of the door body or retracts into the door body.

2. The refrigerator door opening and closing mechanism as claimed in claim 1, wherein: the guide block is fixed in the door body, and a heart-shaped chute is formed in the side surface of the guide block; the oblique connecting rod is connected to the guide block through a connecting piece, one end of the connecting piece is hinged with the oblique connecting rod, and the other end of the connecting piece is provided with a convex shaft part which is clamped in the heart-shaped sliding groove.

3. The refrigerator door opening and closing mechanism as claimed in claim 2, wherein: the position of the protruding shaft part in the heart-shaped chute slides from high position to low position or from low position to high position along with the operation of pushing the oblique connecting rod by the push switch.

4. The refrigerator door opening and closing mechanism as claimed in claim 1, wherein: the lifting rods are two in number and distributed up and down, the oblique connecting rods are two in number and connected between the two lifting rods, and one ends of the two oblique connecting rods are mutually hinged and distributed in a V shape.

5. The refrigerator door opening and closing mechanism as claimed in claim 4, wherein: the two oblique connecting rods are connected to the guide block through a connecting piece, and one end of the connecting piece is connected to the hinging position of the two oblique connecting rods and forms Y-shaped distribution together with the two oblique connecting rods.

6. The refrigerator door opening and closing mechanism as claimed in claim 1, wherein: one side of the telescopic stop block is provided with a telescopic spring, the telescopic spring is sleeved on the lifting rod, one end of the telescopic spring is abutted to the telescopic stop block, the other end of the telescopic spring is pressed on a seat sleeve, and the seat sleeve is fixed in the door body and encloses the telescopic spring on the inner side of the door body.

7. The refrigerator door opening and closing mechanism as claimed in claim 6, wherein: the top surface of the door body is provided with a containing groove and a packaging block contained in the containing groove, the packaging block is flush with the top surface of the door body or does not exceed the top surface, the packaging block is provided with a through hole for containing the telescopic stop block, and the telescopic stop block protrudes out of the door body or retracts into the door body through the through hole.

8. The refrigerator door opening and closing mechanism as claimed in claim 1, wherein: the pressing switch comprises a pressing main body and a pulley arm protruding from the inner side of the pressing main body towards the inclined connecting rod, one end of the pulley arm is fixed on the pressing main body, the other end of the pulley arm is provided with a pulley, and the pulley is used for realizing pressure connection on the inclined connecting rod in the pressing operation of the pressing switch.

9. The refrigerator door opening and closing mechanism as claimed in claim 8, wherein: the number of the pulley arms is two, and the pulley arms form V-shaped distribution; the push switch further comprises at least one reset spring arranged in the door body, wherein the reset spring is positioned on the inner side of the push main body and pushes the push main body to reset when the push operation is finished.

10. The refrigerator door opening and closing mechanism as claimed in claims 1 to 9, wherein: the top surface of the door body is provided with a strip-shaped groove and a magnetic strip accommodated in the groove; the telescopic stop block protrudes out of the door body and is clamped on the refrigerator body when the door body is in a closed state, the refrigerator body is also provided with a magnetic strip, and the magnetic strip on the refrigerator body and the magnetic strip on the door body are placed in a mode that the magnetic poles are opposite to each other and correspond to each other.

11. The utility model provides a refrigerator door switch mechanism, includes the door body, installs in the internal actuating lever subassembly of door and installs the push switch on the door body, its characterized in that: the driving rod assembly comprises a vertically extending lifting rod and an elastic pulling piece connected to one end of the lifting rod, a telescopic stop block is arranged at the tail end of the lifting rod, and the pressing switch pulls the lifting rod through inwards pushing the elastic pulling piece so that the telescopic stop block is retracted into the door body.